18731440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:147

約数の個数: 160

約数和(自身を含む): 55996416

約数和(自身を除く): 37264976

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 80, 83, 91, 104, 112, 124, 130, 140, 155, 166, 182, 208, 217, 248, 260, 280, 310, 332, 364, 403, 415, 434, 455, 496, 520, 560, 581, 620, 664, 728, 806, 830, 868, 910, 1040, 1079, 1085, 1162, 1240, 1328, 1456, 1612, 1660, 1736, 1820, 2015, 2158, 2170, 2324, 2480, 2573, 2821, 2905, 3224, 3320, 3472, 3640, 4030, 4316, 4340, 4648, 5146, 5395, 5642, 5810, 6448, 6640, 7280, 7553, 8060, 8632, 8680, 9296, 10292, 10790, 11284, 11620, 12865, 14105, 15106, 16120, 17264, 17360, 18011, 20584, 21580, 22568, 23240, 25730, 28210, 30212, 32240, 33449, 36022, 37765, 41168, 43160, 45136, 46480, 51460, 56420, 60424, 66898, 72044, 75530, 86320, 90055, 102920, 112840, 120848, 133796, 144088, 151060, 167245, 180110, 205840, 225680, 234143, 267592, 288176, 302120, 334490, 360220, 468286, 535184, 604240, 668980, 720440, 936572, 1170715, 1337960, 1440880, 1873144, 2341430, 2675920, 3746288, 4682860, 9365720, 18731440]

約数ペア:

[(1, 18731440), (2, 9365720), (4, 4682860), (5, 3746288), (7, 2675920), (8, 2341430), (10, 1873144), (13, 1440880), (14, 1337960), (16, 1170715), (20, 936572), (26, 720440), (28, 668980), (31, 604240), (35, 535184), (40, 468286), (52, 360220), (56, 334490), (62, 302120), (65, 288176), (70, 267592), (80, 234143), (83, 225680), (91, 205840), (104, 180110), (112, 167245), (124, 151060), (130, 144088), (140, 133796), (155, 120848), (166, 112840), (182, 102920), (208, 90055), (217, 86320), (248, 75530), (260, 72044), (280, 66898), (310, 60424), (332, 56420), (364, 51460), (403, 46480), (415, 45136), (434, 43160), (455, 41168), (496, 37765), (520, 36022), (560, 33449), (581, 32240), (620, 30212), (664, 28210), (728, 25730), (806, 23240), (830, 22568), (868, 21580), (910, 20584), (1040, 18011), (1079, 17360), (1085, 17264), (1162, 16120), (1240, 15106), (1328, 14105), (1456, 12865), (1612, 11620), (1660, 11284), (1736, 10790), (1820, 10292), (2015, 9296), (2158, 8680), (2170, 8632), (2324, 8060), (2480, 7553), (2573, 7280), (2821, 6640), (2905, 6448), (3224, 5810), (3320, 5642), (3472, 5395), (3640, 5146), (4030, 4648), (4316, 4340)]